not to impressed with the prem stereo. No RDS! And the bass is weak! I have an 08 chrysler 300 striped down fleet car that has a better sound system....

is the sound system with the built in NAV any better?

 

probably not, its an economy car, it wont have the best of everything

 

no none of the factory stereos are going to sound any different. The only way that you will get a better sound is to switch out the speakers preferably with a 4ch amp but its not required, and as far as bass you'll have to add a sub or subs with a mono or 2 ch amp.

 

very easy to fix...get a sub box...and amp and the wiring...and you will get some sweet bass...without spending too much money!